The Housing Department website says: "electrical hazards", or "sewer overflows" should be addressed in "two to eight hours".

Tenancy rights state: "Landlords must maintain premises in a healthy condition. If mould is a result of a landlord's failure to properly maintain premises, the landlord can be in breach of the Residential Tenancy Agreement. The landlord is obliged to repair the problem and could also be liable to pay compensation to the tenant for loss of use of the property and damage to the tenant's goods."

The NSW Government sold off the Sirius building for $150 million and netted more than $600 million from selling off housing in Millers Point.

"I'm very concerned the government has plans to sell off these apartments here in South Coogee," Mr Park said.

A Productivity Commission report from earlier this year found that one in four public housing survey respondents were living in unacceptable conditions.